Roller-skate.



m. 674,096. Patented May I4, 1901.

J. w. PEASE. ROLLER SKATE.

(Application filed Dec. 2, 1899.)

(No Model.)

R 4- r b Ilniirnn STATES PATENT ()FFICE.

JOSEPH WARREN PEASE, OF CHICAGO, ILLINOIS.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 674,096, dated May 14,1901.

Application filed December 2,1899. Serial No. 738.971. (No model.)

To aZZ whmn it may concern:

Be it known that I, JOSEPH WARREN PEASE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Roller-Skates, of which thefollowing is a specification.

My invention relates to improvements in roller-skates of the classwherein the intermittent application of pressure by the skater enhancesthe speed of rotation of the rollers, and consequently the velocity oflocomotion My object is to provide an improved skate of the above classof a simple, durable, and compact construction which renders itparticularly desirable for its purpose.

In the drawings, Figure l is a view in side elevation of a roller-skateof my improved construction; Fig. 2, a top plan and sectional view withpart of the foot-plate broken away; Fig. 3, a broken sectional view ofintermittent grip mechanism which I provide between the foot-plate androller-driving speed-gear, the section being taken on line 3 of Fig. atviewed in the direction of the arrow; Fig. 4, a section taken on line etof Fig.3 and viewed in the direction of the arrow; Fig. 5, an enlargedsection through the skate-propelling speed-roller, and Fig. 6 a brokensection taken on line 6 of Fig. 5.

A is a footpiece or foot-plate provided near its forward end with asuitably-constructed hanger or bracket or, in which the forward rollers11 are journaled.

B is a swinging frame fulcrumed at its forward end upon a pin 0, whichpasses through ears d on the under side of the foot-plate. On the rearend of the foot-plate A is a downward-extending guide-pin e, describingthe arc of a circle of which the fulcrum-pin c is the center. Theswinging frame B at its rear end has a guide-opening through which thepin passes and at which the frame B is movable upon the pin between ahead or stop 6 and buffer (2 thereon.

C is an intermittent grip device comprising a shaft f, journaled torotate in bearings f on the frame B, a diskf keyed to the shaft andprovided around its periphery with a series of ogee-shaped camsf ahollow wheel or cylinder f loosely jourualed upon the shaft at oppositesides of the disk and having an inner circumferential friction-surfacefsurrounding the cams, and rollers f resting in the sockets formed by thecams. A bifurcated link f is pivotally connected at one end with theunder side of the foot-plate and at its bifurcated end with oppositesides of the hollow wheelf, near the circumference thereof. The partsare so constructed, as shown most clearly in Fig. 3, that in therelative downward movement of the foot-plate the link f turns the wheelfin the direction which causes the rollers f to be gripped and to lockthe wheel and disk f whereby they must rotate together, while in therelative upward movement of the foot-plate the wheel is turned in thedirection to release the rollers, and thus unlock itself from engagementwith the disk. I

Fastened to one of the side bars of the frame B in the positions shownare stub shafts or pins ht. Fixed to the shaftfis a gear-wheel f whichengages a pinion h, rotating upon the shaft h. A geanwheel 71 integralwith the pinion h, engages a pinion t" on the shaft t', and a gear-wheel2' integral with the pinion t, engages a pinion 70, which is fixed to arotary cross-shaft 7c, journaled in the side bars of the frame B. Therear or driving skate-rollerZ is loosely journaled upon the shaft 70 andhouses a disk 70*, which is keyed to the shaft. tially like the disk fdescribed, with peripheral ogee cams it surrounded by an inner annularfriction-surface l of the roller Z, and interposed between the cams lcand frictionsurface Z are gripping-rollers 76*. The con- The disk 10 isformed substani struction is such that when in the relative The footpiece or plate A is provided with slots m to receive fastening-straps,though any other suitable means may be employed for securing the skatesto the feet of the wearer.

The movements in skating with my improved skates, which are adapted forforward skating only, may be practically the same as in the use of theordinary roller-skates. When an impulse is given and the impelling-footis lifted, the frame B of the skate on that foot will swing downward bygravity on its fulcrum at 0 until arrested by the stop 6', in whichmovement the wheel f will move freely to the position shown in Fig. 3.As the skater shifts his weight to the then forward foot the frame orfootpiece A of the skate carried thereby is pressed downward to swingupon the fulcrum o and turn the wheel f train of wheels, and roller Z,as indicated by the arrows, at a speed enhanced by the force contributedby the weight of the skater. When the buffer 6 strikes the frame B, theintermittent grip members will instantly release themselves and theroller Zwill rotate freely. Thus a greater speed maybe attained by theskater and with much less effort than in the use of the ordinaryroller-skates. In practice a suitable casing may be provided for thegears to house them against the access of dust.

The train of speed-multiplying gears may be increased or diminished, ifdesired and although I prefer to construct my improvements throughout asshown and described, they may be variously modified in the matter ofdetails of construction without departing from the spirit of myinvention as defined by the claims.

What I claim-as new, and desire to secure by Letters Patent, is.-

l. In a roller-skate, the combination of a footpiece and frame pivotallyconnected to- 'gether to swing toward and away from each other at theirrear ends, a driving-roller and speed-gears therefor upon the frame,and- Speed-gear driving intermittent grip mechanism upon the frameoperatively connected with'the footpiece to be actuated thereby in itsmovement toward the frame, substantially as and for the purpose setforth.

2. In a roller-skate, the combination of a footpiece and frame pivotallyconnected together to swing toward and away from each other at theirrear ends, a guide on the footpiece for the swinging end of the frame, adriving-roller and speed-gears therefor upon the frame, and speed-geardriving intermittent grip mechanism upon the frame operatively connectedwith the footpiece to be actuated thereby in its movement toward theframe, substantially as and for the purpose set forth.

3. In a roller-skate, the combination of a footpiece and frame pivotallyconnected together to swing toward and away from each other, adriving-roller and speed-gears therefor upon the frame, intermittentgrip mechanism between the said speed-gears and driving-roller, andspeed-gear driving intermittent grip mechanism upon the frameoperatively connected with the footpiece to be actuated thereby in itsmovement toward the frame, substantially as and for the purpose setforth.

4. In a roller-skate, the combination of a footpiece A and frame B,pivotally connected together toward their forward ends, a frameguide etoward the rear end of the footpiece, intermittent grip mechanism 0 on ashaft f, journaled in the frame, intermittent grip mechanism actuatinglink f connected with the footpiece, a driving-roller Z upon a shaft 70,journaled in the frame, speed-gears between the shafts f and 7c, andintermittent grip mechanism between the shaft k and roller Z, allconstructed and arranged to operate substantially as and for the purposeset forth.

JOSEPH WARREN PEASE. In presence of- M. J. FROST, F. J. MARTIN.

